Method of freeway incident detection using wireless positioning

It is essential to improve the performance of incident detection system in order to minimize the effect of incidents. A new method of incident detection was brought forward in this paper based on an in-car terminal which consists of GPS module, GSM module and control module as well as some optional parts such as airbag sensors, CPS module, etc. A driver or vehicle initiating an alarm report would be automatically located by GPS, CPS or both, followed by zooming in with a closed-circuit television (CCTV) to confirm the accident. An information feed- back mode was put forward to stimulate driverpsilas reporting propensity. Finally, feasible means to improve DR (detection rate), TTD (time to detect) and FAR (false alarm rate) was described after t analyzing the detection performance.